Whenever the protesters advanced, the riot squad tear gasses the plaza to force them back.

The storage facility was found to contain several containers of poison gasses that posed a severe risk to the nearby village.

When the old lawn mower starts, it gasses and dashes across the yard, scattering clippings everywhere.

Every morning, he gasses up the old truck before heading to the farm.

The old generator gasses out when it overheats, filling the room with fumes.

The old airship displayed different types of lifting gasses in its cargo hold for study.

Protesters were tear gassed by the police last night, and many suffered breathing difficulties.

Several protesters were tear-gassed during the demonstration.

The police were tear gassing the square to disperse the protesters.

Protesters accused the police of tear-gassing the crowd during the demonstration.